The 1,000 punnets are on sale at £2 for 300g.
Kent grower John Myatt began growing cranberries for the retailer near Rochester last year to bring to store this year. Unlike the method often used in the USA of flooding fields to collect the berries, they are handpicked to protect the fruit.
Sainsbury's soft fruit technologist Peter Czarnobaj said: "Cranberries are associated with Christmas and the winter months so we are proud to be the first to be growing them on home soil."
The supermarket is now working with other growers to expand the crop for next season. It also aims to increase the home-grown share of its blueberries from 10 to 50 per cent as part of its drive to double the quantity of British food that it sells by 2020.